Average of 10 numbers 2680. If average of 6 is 2675, average of remaining 4? MCQ with Answer and Explanation

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Average of 10 numbers 2680. If average of 6 is 2675, average of remaining 4?

A. 2685

B. 2686

C. 2690

D. 2687.5

Answer: Option D

Solution (By JKSSB Mock Tests)

Sum10=26800. Sum6=16050. Remaining=10750. Average=2687.5.

This question belongs to: Maths Average

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Question #1

The average of 20 and 40 is 30, average of 40 and 60 is 50, average of 20,40,60 is

A. 40

B. 45

C. 42

D. 38

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Correct Answer: Option A

Explanation:
Sum=120. Average=40.

This question belongs to: Maths Average

Question #2

The average of 5 numbers is 18. If each number is multiplied by 3, what is the new average?

A. 54

B. 60

C. 36

D. 45

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Correct Answer: Option A

Explanation:
New average =18×3=54.

This question belongs to: Maths Average

Question #3

The average of 55,65,75,85 is

A. 72

B. 70

C. 75

D. 65

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Correct Answer: Option B

Explanation:
280/4=70.

This question belongs to: Maths Average

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